OHA identifies many Portland neighborhoods as ‘high risk for radon’ https://topnotchhomeinspection.com/wp-content/uploads/2016/06/OHA-identifies-many-Portland-neighborhoods-as-‘high-risk-for.mp4 OHA identifies many Portland neighborhoods as ‘high risk for radon’ Read more: http://www.kptv.com/Clip/12159933/oha-identifies-many-portland-neighborhoods-as-high-risk-for-radon#ixzz4BCES8wQX
